/* 头部设计 */
.sy{
    margin-left: 160px;
  }
  /* 导航栏设计 */
  .box{
    width: 1154px;
    margin-left: 160px;
    margin-right: 160px;
    background: url("../img/image2.jpg");
  }
  
  .box ul {
    display: flex;
    align-items: center;
    justify-content: space-around;
    width: 1154px;
  }
  .box li {
    flex: 1;
  }
  
  .box a {
    display: block;
    text-align: center;
    height: 4rem;
    line-height: 4rem;
    overflow: hidden;
  }
  
  .box li > a {
    font-size: 1rem;
  }
  
  
  /* 0. 网站统一样式定义 */
  html {
      font-size: 62.5%;
    }
    
    body {
      color: #000;
      --site-width: 100%;
      font-size: 1.2rem;
      line-height: 2rem;
    }
    
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    p,
    ul,
    figure {
      margin: 0;
      padding: 0;
    }
    
    li {
      list-style-type: none;
    }
    
    /* 链接默认 */
    a {
      text-decoration: none;
      color: #333;
    }
    
    a:hover {
      color: #ffffff;
    }
    
    /* 图片尺寸处理：依据父容器进行图片自适应 */
    image1 {
      width: auto;
      height: auto;
      max-width: 100%;
      max-height: 100%;
    }
    
    /* 第一层布局语义容器的宽度 */
    header,
    nav,
    main,
    footer {
      width: calc(var(--site-width));
      margin: 0 auto;
    }
    
    /* 0-2. 公共定义 */
    .fl {
      float: left;
    }
    
    .fr {
      float: right;
    }
    
    .cl {
      clear: both;
    }
    
    .mt30{
      margin-top: 3rem;
    }
    /* "首页"默认显示风格，将来需要JS来控制 */
    nav li:first-of-type > a {
      color: #ffffff;   
    }
    
    nav li:hover > a {
      color: #ffffff;
    
    }
    
    /* 二级菜单定义 */
    nav ul.sub_menu {
      display: none;
      position: absolute;
    }
    
    nav li:hover ul.sub_menu {
      display: flex;
      flex-direction: column;
      align-items: stretch;
      background-color: #ffffff;
      width: calc(120rem / 9);
      z-index: 999;
    }
    
    nav ul.sub_menu a {
      color: #282828;
      font-size: 18px 宋体;
    }
    
    nav ul.sub_menu li:hover > a {
      background-color: #ffffff;
    }
    
     /* 设置table*/
    .box1{
      width: 1154px;
      height: 600px;
      border: 0px solid rgb(160, 69, 69);
      margin-right: 160px;
      margin-left: 160px;
    }
    .box2{
      border: 0px solid rgb(20, 20, 20);
      margin-left: 132px;
      width: 132px;
      height: 600px;
      background-color: rgba(6, 179, 247, 0.2);
    }
    .img{
      margin-top: 5px;
      margin-left: -20px;
      width: 162px;
      height: 40px;
      background: url("2/jwgz.jpg");
    }
    .text{
      margin-top: -30px;
      text-align:center;
      font-size: 18px;
    }
    .box3{
      margin-top: -605px;
      margin-left: 300px;
      border: 0px solid black;
      width: 722px;
      height: 550px;
    }

    .box4{
      width: 722px;
      height: 60px;
      border: 0px solid black;
    }
    .box5{
      text-align: center;
      margin-top: 40px;
      border: 0px solid black;
      height: 20px;
    }
    .c{
      border: 1px solid rgb(5, 193, 250);
    }

    /* 尾部设计 */
    .foot{
      width: 1154px;
      height: 50px;
      margin-right: 160px;
      margin-left: 160px;
      background-color: rgb(8, 125, 193);
    }
    .text4{
      margin-top: -10px;
      margin-left: 160px;
      margin-right: 160px;
    }
    /* 蓝条 */
  .test{
    margin-left: 500px;
    margin-right: 300px;
  }

